The protruding teardrop on the back of the Aero Sphere lets the fan be used with or without its stand—preventing it from rolling around when placed on the floor. And the honeycomb design supposedly helps to stabilize the breeze from the spinning blades inside, allowing it to travel further across a room for more effective cooling. While no where near as expensive as Dyson's Air Multiplier, the Aero Sphere will still set you back over $90, not including the probable import fees needed to get one outside of Japan.